Machine



(No Modal.) 4 Sheets-Sheet l.

G, F. ROGGBNBAUGH. TYPE WRITING MACHINE.

No. 593,031. Patented Nov. 2,1897.

4 Sheets-Shet 2.

'Patented Nov. 2,1897.

C. F. ROGGBNBAUCH. TYPE WRITNG MACHINE.

(No Model.)v

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W/TNESSES (No Model.) 4 Sheets-Sheet 3, C. I'. ROGGBNBAUCH.

TYPE WRITING MACHINE.

N0.593,03l. Patented Nov. 2,1897.

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C'. I. ROGGE'NBAUGH.

(No Model.)

IYPE WRITING MACHINE.

Patented Nov. 2, 1897.

, tion of the machine on line 2 2, Fig. l.

UNITED STATES Parenti* ritten'.

CHARLES F. ROGGENBAUCH, OF NEWT YORK, Y.

TYPE-Wmrme MACHINE.

l SPECIFICATION forming part of Letters Patent No, 593,031, dated November 2, 189'?.

Application tiled February 27, 1897. Serial No. 625,280. (N0 mdl.)

To all lah/0pt it may concern,.-

Be it known that I, CHARLES F. ROGGEN- BAUCH, a citizen of the United States, residing in the city, county, and State of New York, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.

This invention relates to that class of typewriting machines in which the writing is visible and in which each type-bar is provided with two types for large and small letters, respectively, or for different characters.

The main object of the invention is to impart a vertical oscillatory movement to the platen and at the saine time to so relatively arrange the faces of the types or characters as that their planes will be at right. angles to the radii of the platen in the two positions of the f sam e, so that the impact of each type or character will be directly toward the axis of the platen, whereby in that class of type-writing machines where the platen moves in a curve the printing which is produced will always be perfect, as the type or character will always strike the surface of the platen squarely.

A further object of the invention is to siin plify and render more efficient the means for returning the type-bars to normal position after the same have been actuated by the keylevers, and also to simplify the intermediate connections between the returning medium,

.the typebars, and the key-levers.

The invention also has for its object to reconstruct and generally rearrange the construction of type-writing machines so as to both simplify the same and render them more easy of manufacture.

ln the accompanying drawings, Figure lis a plan view of a type-writin g machine embodying myiinprovements, some of the key-levers and the related parts, however, only being shown, as the others are substantially duplicates. Fig. 2 is a longitudinal vertical sec- Fie'.

3 is a front elevation, partlyin section, on line 3 3, Fig. l. Fig. 4C is a broken detail sectional view showing the manner of constructing the operating or knuckle joints between the keylevers, type bars, and type barreturning slides. Fig. 5 is a similar view showing a different position of the same parts when the key-lever vhas been depressed so that the typebar is raised into verticalposition and the returning-slides of the type-bars acted on, said figure also showing in dotted lines the platen in lower position; and Fig. G is a broken detail View showing more particularly the guiderail for the wheel of the carriage of the platen, and also showing the outermost type or character of a type-bar as having struck the platen, which latter is shown in raised position.

Similar letters of reference indicate corresponding parts.

.Referring to the drawings, A indicates the base-board, A the base-plate of the machine, which is placed upon and connected with the base-board in any approved manner, and A2 represent uprights arranged at the rear part of the base or bed plate of the machine, which are connected by and carry at their upper ends the segmental plate B, the curved portion of which hangs downwardly. The typebars are hung in any approved manner upon this segmental plate, to be hereinafter fully described.

To the rear of the bed or base plate A of the machine are uprights A3, which are connected by a horizontal cross-rod A4. To this cross-rod are pivoted two swinging arms D, which carry at their outer ends on a suitable axis or journal-bearings the usual platen G, over which the paper is caused to pass, so as to receive the impression of the type or characters of the type-bar mechanism. These swinging arms D constitute a portion of the carriage which traverses the machine crosswise, while the other portion of the carriage consists of a U -shaped frame D, which is pivoted at CZ to the ends of the arms D forwardly of the journals or shaft O" of the platen and which is provided at about its mid-length with a grooved supporting wheel or roller d', that runs upon a suitable guide-rail e of a vertically-movable frame E. Inasmuch as the frame E moves in a vertical path the roller d is supported on the pivoted frame D', whereby the roller is always permitted to ride truly and correctly on the guide-rail e.

The frame E is separated a suitable distance from the uprights A2 and the segmental plate B, so that a hook d2, iixed to the U-shaped frame D' of the carriage, can extend through the space and engage under the top rail e of said vertically-movable frame D. To set IOS this vertically-movable frame off from the segmental plate B a suitable distance and also to furnish guides for the same, there are secured to the upper end of each of the uprights A2 angular brackets a, which are grooved on their inwardly-presented faces, as shown at d', so as to receive the tongues or projections (73, extending from the ends of the top rail e of said frame E.

The frame E is movedupwardly, so as to swing the platen on the arm D of the carriage, by means of a leverF, which is pivotally connected at its inner end to one of the side bars of the frame E, is fulcrumed intermediately of its ends on` a cross-rod G,supported inbrackets g of the bed-plate of the machine, and is furnished at its outer end with'a key f. By depressing the key of the lever F the frame E is raised, with the result that the U -shaped frame B of the carriage is also raised, while consequently the arms D are oscillated and raised, thus raising the platen C, the axis of which describes a slight curve forming the circumference of a circle, of which the crossrod A4 is the center.

Inasrnuch as the reciprocating movement of the frame E has to be transferred into an oscillating movement in the arms D Vthe U- shaped frame D' of the carriage must be pivoted, as shown at c7, to said arms D, so that saidU-shaped frame D has a slight backward-and-forward play; but this, while it at the same time causes the supporting-wheel of the carriage to slowly oscillate in its own plane, is compensated for by furnishing the top guide-rail e of the reciprocating frame E with a raised bead or flange e, on which the Wheel can rock. The carriage can be caused to travel back and forth by any approved mechanism, which is not necessary to be herein shown, and of course any well-known ribbon mechanism can also be used.

Vthe slots 7L are laterally offset at h2.

The mechanism for actuating the type-bars will now be described. The type-bars H are hung in transverse slots Z) in a curved flange B', which is arranged on the lower curved edge of the segmental plate B'. h2 is the supporting-wire which ext-ends across said slots b. The inner end or heel ends of the typebars I-I are enlarged, so as to provide laterally-extending wings 71, which are provided with slots h', that extend in the direction of the length of the Shanks or stems of the typebars, so as to open in the direction of the types or characters, while the inner ends of By thus slotting the wings 71, of the type-bars the same can be readily assembled in the machine and can also be readily removed for the purpose of renewing a broken or damaged type-bar, while at the same time the offsetting of the slots at 7L2furnishes a suitable means whereby the type-bars are prevented from being displaced accidentally, as the fuicruming-wire 290 receives such offset portions of the slots. To detach a type-bar, it is necessary to slightly raise the inner end of the same and then push the type-bar rearwardly. The type-bars for the purpose of their actuation are further provided with laterally-projecting pins 7b3, extending from the wings h, and adjacent to and in advance of said pins 713 the type-bars are provided with rearwardly presented shoulders h4. a laterally-projecting pin t' at the upper end of each of the L-shaped key-levers I, while the pin h3 on the type-bar is engaged by a finger il', extending upwardly from the short arm of each 0f the L-shaped key-levers and arranged to the rear of the pin 'i thereon. Thevkey-levers are, at the elbows of the same, furnished with open recesses z2, which receive the cross-rod J, whereby the key-levers are fulcrumed to the machine, said cross-rod J being supported in suitable brackets fixed to the base or bed plate A'. The key-levers I are provided at their outer ends with the customary keys i3 and are held in proper horizontal position by means of a stop-rod l, which is fixed to a frame L, supported on the base or bed plate A. The type-bars when in normal position are supported and rest upon a semicircular cross-bar 7. of said upright frame L. The brackets for supporting the crossrod J, on which the key-levers I are f ulcrumed,

are preferably formed from a single casting or block j, which extends transversely of the bed or base plate and which is furnished with slots j', intowhich the elbows of the key-levers extend.

The short arms of the key-levers are furnished with longitudinal slots 7c, parallel with which is fixed in each key-lever a flat spring 7o', the ob ject of which is to hold the hooked end of a tension-spring Kin engagement with a series of notches 7a2, formed in one of the walls ofthe slot 7c. Said hooked ends of the tension-springs K can be adjusted into any one of the notches 702, so as to increase or decrease the tension of the spring and thereby either cause the key-levers to return directly or slide to normal position, while this adjustment of the spring is further effectuated by means of notched studs ko, which project from a ledge extending rearwardly from the cross-block j, on which the key-levers are fulcrumed.

It will be observed that there is no positive pivotal connection of the key-levers with the machine nor with the type-bars, nor is there a positive connection of the latter with the machine. This is done for the purpose of facilitating the assembling of the parts, and also to render it easier to repair the machine in case of breakage of some of these parts.

In depressing one of the key-levers I the pin t', which is normally in contact with the shoulder 7114 of the actuated type-bar, is caused to first impart to the type-bar an upwardswinging movement,which movement is taken up and completed by a second or continued impulse to the type-bar by the linger t" of the key-lever, which is forced against the lateral pin h3 on the type-bar, the two but The shoulder 7L'L is engaged by IOO IIO

continuous actuations of the type-bar imparted by the cooperation of the pin fi, shoulder hi, iinger i', and pin h3, thus completing the upward swinging of the type-bar to vertical position, so that one of the types or characters o o is brought against the paper on the platen C. This construction of the joints between the key-levers and the typehars also enables an easy movement of the parts.

The types or characters o o are arranged in pairs on the outer ends of each type-bar II in the well-known manner, one of the same being a capital and the other a small letter, but the disposition of the printingfaces of these types or characters is diierent than heretofore, inasmuch as the same are inclined so as to have an upward or outward slant away from a point intermediately ot the two types or characters. In other words, the printing-faces are inclined inwardly toward each other. This disposition of the printing-faces of the types or characters is necessitated by reason of the fact that the platen C, in being oscillated up and down, is caused to describe a curve, and if the printing-faces ot the types or characters were not inclined, as in this case, although one of the same would strike the platen squarely the other would not.

The type-bars are returned to their normal position by the following mechanism: M incates a swinging returning-frame, which is fulcrumed at its lower ends to a suitable cross-rod 'in and is under a forward stress imparted to the same by means of a fiat spring N, which is in engagement with a rearwardlyprojecting heelm', extending from the central bar of said trame M. The upper or top crossbar M of the frame M is semicircular or arcshaped and engages with a series of semicircularly-arranged type-bar-retu rnin g slides P, which at their rear ends are guided in openings in a semicircular or curved guide-- plate Q, which is supported from the brackets a. The forward portions of the type-bar-returning slides P enter side extension-slots bx of the slots b, which are formed in the segmental plate B. The extreme forward ends of the type-bar-returning slides P are each formed with two lobes r r', which form between them a rounded cavity. Above or in front of the slot h' in the heel-wing h, of each type-bar II are formed two cavities or depressions h he, between which the same is thereby provided with a nose hl, having a convex contour. In normal position of the type-bars the lowermost lobes fr of the type-bar-returning slides rest against the noses 71,7 of the typebars, while when the type-bars are forced upwardly into vertical position by the keylevers the noses act upon said lowermost lobes, so as to force the returning-slides rearlobe of the type-bar-returning slide, but is completed and taken up by the recessed portion 71,5 of the type-bar coming against the upper lobe fr of the type-bar-returning slide.

In this manner the type-bars when moving in an angle of ninety degrees are caused to project the type-bar-returning slides rearwardly to their fullest extent without straining any part of the mechanism, while the rel turn of the type-bars to normal position is accomplished by the forwardly-actuated typebar-returning slides in a similar manner without straining any of the mechanism.

All the parts of my improved type-writing machine, especially the key-lever and typebar mechanism, are easily assembled in the machine, are smoothly operated, and are readily taken apart without endangering the 'practicability and effectiveness of the machine.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. In a type-writing machine, the combination of a frame, a carriage, a platen on the carriage, a series of type-bars, each carrying a pair of types or characters, the printingfaces of the types or characters being inclined inwardly toward each other, key-levers, and means for imparting an oscillatory movement to the platen, substantially as set forth.

2. In a type-writing machine, the combination of a frame, a carriage, a platen journaled in the carriage provided with a laterally-oscillating roller, a vertically-movable frame provided with a top rail, means for guiding said movable frame, said carriage being guided and suitably supported on said top rail, a vertical plate in front of said movable frame and forming a part of the frame of the machine, a series of type-bars pivoted to said vertical plate, and each carrying a pair of types, key-levers, and means for imparting a vertical oscillating movement to the carriage and platen through the medium of said movable frame, substantially' as set forth.

3. In a type-writingmachine, the combination, with an oscillatory platen, and means for oscillating said platen, of a series of typebars, and means for actuating the same, said type-bars being provided with a pair of types or characters, which are inclined relatively with respect to each other, substantially as set forth.

In atypewriting machine, the combination, with the segmental supporting-plate Aprovided with means of support for the typebars, of the type-bars fulcrumed to said support an d provided with shoulders and lateral pins, and the key-levers provided with pins extending in opposite direction to the pins on IOS IIO

tion, with the type-bars, and key-levers for actuating the same, of tension-springs, the ends of which are adapted to take into a series of notches in the short arms of the keylevers,` and dat springs for holding said tension-springs in position, substantially as set forth.

(3. In a type-Writing machine, the combination, With the type-barsand the keylevers for actuating the same, said type-bars being provided with two cavities and a nose between the cavities, of the type-bar-returning slides guided in a part of the frame ofthe machine, and provided with two lobes engaging in the cavities of the typeebars, a guide for supporting said slides, and a spring-actuated device for returning the' slides and the type-bars to normal position, substantially as set forth.

Y CHARLES F. ROGGENBAUCH.

Witnesses:

PAUL GoEPEL, GEO. L. WHEELOCK. 

